        .386
        .model flat, stdcall
        option casemap:none
include		windows.inc
include 	user32.inc
include kernel32.inc
includelib user32.lib
includelib kernel32.lib

        .data
szText db 'HelloWorld!',0
        .code
start:
        invoke MessageBoxA, NULL, offset szText, NULL, MB_OK
        invoke ExitProcess, NULL
end start
